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6 Cards in this Set
- Front
- Back
What are the three main area of the ear and what is their function
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Outer - Ear - collects sound waves and channels them inwards
Middle - conveys sound vibrations to the oval window Inner - house the receptors for hearing and equilibrium |
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Describe the anatomy of the outer ear
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Consists of the Auricle, external auditory canal & tympanic membrane
Ear opening contains hairs and ceruminous glands that secrete cerumen(earwax) to trap dust |
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Describe the anatomy of the middle ear
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Found in petrous portion of temporal bone
separated from outer and inner ear by tympanic membrane and oval window Contains auditiry ossicles, connected by synovial joints- malleus, incus & stapes Euchachian tube found here connects to nasopharnyx |
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Describe the skeletal muscles found in the middle ear
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Tensor tympani muscles connect to ossicles and limit movement to prevent damage during loud noises and chewing
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What are the three channels of the cochlea
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Cochlear duct
Scala vestibule scala tymphani |
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what rests on the basilar membrane and what does it contain?
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The organ of corti, which contains the 16,00- hair cell receptors for hearing
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